Heating apparatus



Au 20, 1929. M, E, VEZI 1,125,322

HEATING APPARATUS Filed June 8, 1927 mr/mssss I INVENTOR.

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M A TTORNEYS.

Patented Aug. 20, 1929.

UNITED STATES PATENT OFFICE.

MELBOURNE EUGUENE VEZIE, OF CUSHING, OKLAHOMA.

HEATING APPARATUS.

Application filed June 8,

This invention relates to improvements in heating apparatus and more particularly to an apparatus for heating fluids, and while the apparatus is designed primarily for heating gasoline to be supplied to the carbureters of internal combustion engines, by utilizing the exhaust gases as a heating medium, the invention contemplates the employment of the principles of the invention in apparatus for heating fluids oi any and ali kinds and whether liquid or gaseous.

()ne of the objects of the present invention, as regards its use in connection with internal combustion engines, is to provide a novel apparatus by the use of which gasoline may be heated, before being deiivered to the carbureter, through the medium of the exhaust from the engine, thus utilizing heat which is ordinarily a total loss, and insuring of more perfect combustion of the explosive charge and more thorough vaporization of the Iuel.

Another object of the invention is to pro vide an apparatus for the purpose stated which will be extremely simple in its con struction and devoid oi any movable or adjustable parts which might become disarranged, and which apparatus will be so constructed as to insure against rupture of the same under high pressure.

Another object or the invention is to so construct the apparatus that heat transference between the exhaust gases or other heating medium supplied to the apparatus, and the fluid to be heated, will be economically effected and with a degree of elliciency to insure the utilization oi substantially all of the heat of the heating medium.

Another object of the invention is to provide a fluid heating apparatus which, without any material alteration or reorganization of its structure, may be employed under various conditions, for heating various fluids, the invention residing in the construction and arrangement oi the component parts or the apparatus rather than in any particular adaptation of the apparatus, to any special use. 7

\Vliile the accompanying drawings and the description which is to Iollow, constitute a disclosure of the preferred embodiment of the invention, it will be understood that various changes may be made within the scope of what is claimed.

In the accompanying drawings:

Fig. 1 is a vertical longitudinal sectional 1927. Serial No. 197,468.

view through a heating apparatus constructed in accordance with the present invention;

Fig. 2 is a vertical transverse sectional view taken substantially on the line 22 of Figure 1 looking in the direction indicated by the arrows.

The apparatus embodying the invention comprises a cylindrical drum or shell which is indicated in general by the numeral 1 and which may be made of sheet metal or of any other material, depending upon the size of the apparatus and the use to which it is to be put. This drum is closed at one end by a head 2 and at its other end by a head 3, and circular partition walls l and 5 are provided within the drum in spaced relation to the heads 2 and 3, respectively. The head 2 is formed centrally with an opening, and arranged within this opening and forming a fluid-tight union therewith, is an intake conduit 6 for the heating medium, this conduit extending between the head 2 and the partition wall 4 as clearly shown in Figure 1 and being provided, exteriorly of the shell 1, with a conical extension indicated by the numeral 7, which extension terminates in a nipple 8 or pipe extension to which a pipe from the source of heating medium supply may be connected, or by means of which the apparatus may in any other manner be connected with a source of supply of a heating medium. Where the apparatus is employed in connection with an internal combustion engine, the nipple or pipe extension 8 will be connected to the exhaust delivery pipe of the engine and another section of the exhaust pipe will be connected to a second nipple or pipe extension 9 which is provided at the under side of the shell 1 between the head 2 and partition wall 1, this last mentioned pipe leading to the muffler or directly to the atmosphere, as may be found expedient. In any event the extension or nipple 9 will constitute the exhaust or outlet for the heating medium, whether it be the exhaust gases from an internalcombustion engine or any other heating fluid which may be available.

The numeral 10 indicates a pluralit of tubes which extend between the partition walls 4 and 5 and open at their ends through the said walls, one end of each of the tubes communicating with the interior of the intake pipe 6, and the opposite end of each tube communicating with the space between the head 3 of the shell 1 and the partition wall 5 and which space constitutes an expansion chamber indicated by the numeral 11, it being understood by reference to Figure l of the drawings that the heating medium, which will ordinarily be under pressure, is delivcred from the intake pipe 6, through the pipes or tubes 10, into the said expansion chamber 11. Other pipes 12 extend between the partition walls 4 and 5 and are preferably arranged in an annular series as illustrated most clearly in Figure 2, and these pipes 12 open at their ends through the said partition walls 4 and 5, one end of each of the pipes 12 communicating with the space between the head 2 of the shell 1 and the partition wall 4, and which space constitutes a second expansion chamber indicated by the numeral 13, the other end of each pi e12 communicating with the chamber 11. IE will now be evident that the heating fluid will be delivered from the intake pipe 6 through the pipe 10 and into the expansion chamber 11 where it will expand and then be delivered through the pipe 12 into the expansion chamber 13, where it will further expand and be delivered through the outlet or exhaust 9. Therefore the heating medium is caused to circulate to a considerable extent before it, leaves the heating apparatus and this insures the maximum utilization of the heat of the heating medium as will presently be made apparent.

It will be observed by reference to Figure 1 that the partition walls 4- and 5 define the ends of a chamber which is indicated by the numeral 14, the shell 1 constituting the circumferential wall of this chamber. This chamber is closed except as will now be explained. The numeral 15 indicates a nipple or pipeextension which is located upon the upper side of the shell 1 close to the partition wall 4- and through which gasoline or other fluid to be heated is introduced, and a similar nipple or pipe extension 16 is pro vided upon the upper side of the shell 1 and is in communication with the chamber 14. close to the partition wall 5. Therefore the gasoline or other fluid to be heated is introduced into the chamber 14 by Way of the inlet 15 and, after circulating about the pipes 10 and 12, is delivered from the chamber through the outlet 16. The fluid, in its passage through the chamber, being in contact with the pipes 10 and 12, will be heated through transference of heat from the heating medium which is circulating through the said pipes, as Well as being subjected to heat radiated from the partition walls 4 and 5. Consequently the invention contemplates a thorough heating of the gasoline or other fluid and an efficient utilization of the heat from the heating medium, thus eiiecting an economical operation of the apparatus as a whole.

As indicated above, the heating medium will ordinarily be introduced into the apparatus under pressure and it will be evident that due to the provision of the expansion chambers 11 and 13, there is no likelihood of rupture of the shell of the heater or any other damage incident to a high pressure.

, In order that the chamber 11 may be drained, in the event of accumulation of any condensate from the heating medium, a nipple 17 is provided at the under side of the shell 1. between the head 8 and partition wall 5 and communicates with "the said chamber 11 and may be provided with any suitable drain valve (not shown), or a pipe may be led from this nipple to a drain valve otherwise located.

In order that the chamber 1% may be drained, whenever occasion may require, nipples 18 are provided at the under side of the shell 1 adjacent the partitions 1 and 5 and communicate with the said chamber close to the said partition walls. \Vhile Figure 1 illustrates the provision of two of the nipples 18, it will be understood that only one may be employed, if desired. It will likewise be understood that these nipples provide for the connection of the casings of suitable drain valves which are not shown, as they constitute. no part of the invention.

Any suitable means may be provided for mounting the apparatus embodying the invention inasmuch as the apparatus is designed for use in many different connections, and as an example of a means which may be employed for supporting one end of the shell, Figure 1 of the drawings illustrates a sleeve or collar extension 19 which is secured to or formed integral with the head 8 of the shell, at the center thereof, and projects outwardly therefrom.

Having thus described the invention, what I claim is:

1. In an apparatus for heating fluid, a fluid heating chamber, an inlet for the fluid to be heated communicating with one end of said chamber at the upper portion thereof, an outlet for the said fluid communicating with the other end of the chamber at the upper portion thereof, an expansion chamber at each end of the heating chamber, an inlet conduit for the heating medium positioned centrally within one of'said expansion chambers and at its intake end being positioned in the outer wall of said expansion chamber, a pipe having a flared delivery end in com munication'with the said intake end of the conduit to provide for initial expansion of the heating medium as it is delivered to the apparatus, av plurality of conducting pipes extending within the heating chamber between the ends thereof and communicating at one end with the inlet conduit and at the other end with one of the expansion chambers, a plurality of conducting pipes extending within the heating chamber between the ends thereof and arranged in an annular series about the first mentioned pipes, the last mentioned conducting p'ipes communieating at their opposite ends with respective ones of the expansion chambers, and an outlet for the spent heating medium leading from the lower side of the firstmentioned expansion chamber.

2. In an apparatus for heating fluid, a fluid heating chamber, an inlet for the fluid to be heated communicating with one end of said chamber at the upper portion thereof, an outlet for the said fluid communicating with the other end of the chamber at the upper port-ion thereof, an expansion chamber at each end of the heating chamber, an inlet conduit for the heating medium of hollow cylindrical form and positioned concentrically within one of the expansion chambers and at its intake end being positioned in the outer wall of the said expansion chamber, a pipe having a flared delivery end in communication with the said intake end of the conduit to provide for supply of the heating medium to the conduit and for initial expansion of the heating medium as it is delivered to the apparatus, a plurality of conducting pipes extending within the heating chamber between the ends thereof and concentric with respect to the wall of the heating chamber and communicating at one end with the inlet conduit and at the other end with one of the expansion chambers, an annular series of conducting pipes extending within the heating chamber between the ends thereof and arranged concentrically about the first mentioned conducting pipes and concentrically with respect to the wall of the heating chamber and relatively close thereto, the last mentioned conducting pipes communicating at their opposite ends with respective ones of the expansion chambers, and an outlet for the spent heating medium leading from the lower side of the first mentioned expansion chamber.

In testimony whereof I aflix my signature.

MELBOURNE EUGUENE VEZIE. 

